Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Bylicka, Bogna"'
The rapidly evolving industry demands high accuracy of the models without the need for time-consuming and computationally expensive experiments required for fine-tuning. Moreover, a model and training pipeline, which was once carefully optimized for
Externí odkaz:
http://arxiv.org/abs/2211.17170
Publikováno v:
Phys. Rev. A 102, 012214 (2020)
Non-Markovian effects in an open-system dynamics are usually associated to information backflows from the environment to the system. However, the way these backflows manifest and how to detect them is unclear. A natural approach is to study the backf
Externí odkaz:
http://arxiv.org/abs/1903.12218
Publikováno v:
Phys. Rev. A 99, 012303 (2019)
We investigate the ability of correlation measures to witness non-Markovian open quantum system dynamics. It is shown that the mutual information and any entanglement measure between the system and an ancilla do not witness all non-Markovian dynamics
Externí odkaz:
http://arxiv.org/abs/1805.00920
Publikováno v:
Phys. Rev. A 97, 062124 (2018)
The quantum master equation is a widespread approach to describing open quantum system dynamics. In this approach, the effect of the environment on the system evolution is entirely captured by the dynamical generator, providing a compact and versatil
Externí odkaz:
http://arxiv.org/abs/1704.08702
We investigate the relation between two approaches to the characterisation of quantum Markovianity, divisibility and lack of information backflow. We show that a bijective dynamical map is completely-positive-divisible if and only if a monotonic non-
Externí odkaz:
http://arxiv.org/abs/1603.04288
Publikováno v:
Scientific Reports 6, Article number: 27989 (2016)
We establish a connection between non-Markovian memory effects and thermodynamical quantities such as work. We show how memory effects can be interpreted as revivals of work that can be extracted from a quantum system. We prove that non-Markovianity
Externí odkaz:
http://arxiv.org/abs/1504.06533
Publikováno v:
J. Phys. A: Math. Theor. 46 (2013) 205303
We analyze a class of positive partial transpose states (PPT) such that the positivity of its partial transposition is recognized with respect to canonical factorization of the original density operator (Cholesky block decomposition). We call such PP
Externí odkaz:
http://arxiv.org/abs/1302.1049
Quantum technologies rely on the ability to coherently manipulate, process and transfer information, encoded in quantum states, along quantum channels. Decoherence induced by the environment introduces errors, thus setting limits on the efficiency of
Externí odkaz:
http://arxiv.org/abs/1301.2585
Autor:
Bylicka, Bogna, Chruściński, Dariusz
Publikováno v:
Open Sys. Information Dyn. 19, 1250006 (2012)
We analyze a class of 2-qudit circulant states. They define generalization of well known 2-qubit X-states. We formula the necessary and sufficient criteria for vanishing quantum discord. We illustrate our analysis by an important subclass of circulan
Externí odkaz:
http://arxiv.org/abs/1104.1804
Autor:
Bylicka, Bogna, Chruscinski, Dariusz
Publikováno v:
Phys. Rev. A 81, 062102 (2010)
Bipartite states with vanishing quantum discord are necessarily separable and hence positive partial transpose (PPT). We show that 2 x N states satisfy additional property: the positivity of their partial transposition is recognized with respect to t
Externí odkaz:
http://arxiv.org/abs/1004.0434